wastewater treatment | Process, History, Importance, Systems, & Technologies

Wastewater treatment, also called sewage treatment, the removal of impurities from wastewater, or sewage, before it reaches aquifers or natural bodies of water such as rivers, lakes, estuaries, and oceans. Since pure water is not found in nature (i.e., outside chemical laboratories), any distinction between clean water and polluted water depends on the type and concentration of impurities found in the water as well as on its intended use. In broad terms, water is said to be polluted when it contains enough impurities to make it unfit for a particular use, such as drinking, swimming, or fishing. Although water quality is affected by natural conditions, the word pollution usually implies human activity as the source of contamination. Water pollution, therefore, is caused primarily by the drainage of contaminated wastewater into surface water or groundwater, and wastewater treatment is a major element of water pollution control.

Top Questions


Read More Read More

Ironman Florida: Chris Nikic made history as the first person with Down syndrome to complete triathlon

Guiness World Records recognized Nikic’s achievement after he finished a 2.4-mile swim, a 112-mile bike ride and a 26.2-marathon run at the Ironman Florida competition in Panama City Beach.
“Ironman. Goal set and achieve,” said Nikic in a post to Instagram. “Time to set a new and Bigger Goal for 2021.”

Nikic completed the race in 16 hours 46 minutes and 9 seconds — 14 minutes under the 17-hour cutoff time.

“We are beyond inspired, and your accomplishment is a defining moment in Ironman history that can never be taken away from you,” the Ironman Triathlon organization said in a post to Twitter.
The organization documented the historic race with a series of updates to social media on the day of the competition. The final two miles of Nikic’s run were streamed live on Ironman’s Facebook page.
Chris Nikic competes in the bike portion with his guide, Dan Grieb, during Ironman Florida.
Nikic and his father Nik developed the “1 percent better challenge” to
Read More Read More

Weight Loss Pill That Naturally Burns Fat Gets Biggest Deal In Shark Tank History

( – It was the most watched episode in Shark Tank history when sisters
Anna and Samantha Martin won over the Shark Tank panel.

Never before had the judging panel unanimously decided to each invest over a million dollars into a potential company.

After buying a staggering 25% share in the sisters
company, the Shark Tank panel have personally mentored the pair, helping
them undergo re-branding and re-packing of their miracle product.

Touting their discovery as “a great step forward in weight loss history,”
the judges were quick to offer up their hard earned cash to back the
entrepreneurial pair. “We were shocked. The most we were hoping for was
some advice…we weren’t even sure that we would manage to get any
investors,” explained Samantha. After outstanding offers from each panel
member, the sisters burst into tears.

The judges were amazed that one product was able to do all

Read More Read More